Dominic Thiem caused a major shock by knocking out Stanislas Wawrinka in the second round of the Madrid Open.

Last Updated: 07/05/14 9:24am

Dominic Thiem: Knocked Stanislas Wawrinka out of the second round in Madrid

The 20-year-old shrugged off a slow start to secure a 1-6 6-2 6-4 win, the biggest victory of his developing career.

Third-seeded Wawrinka, who followed up his title in Melbourne with victory at last month's Monte Carlo Masters, started well against the Austria, who is the youngest player in the top 100.

However, he lost his way in the second set and was unable to recover in the third as Thiem pulled off his first-ever win over a top-10 player to secure passage to the third round and a meeting with 15th seed Mikhail Youzhny of Russia or unseeded Spaniard Feliciano Lopez.

"It's never easy to (adjust), especially here, it's flying a little bit," said Wawrinka, who lost to Nadal in last year's Madrid final. "He was finding his game and I was hesitating with my game and wasn't playing my best game.

No surprise

"He's a good player. We all know that. We all see that, especially since the beginning of the year. I'm not surprised because I know him. He was going for it and he deserved to win."

Thiem said: "I cannot really believe it. Of course I was a little bit nervous, but it wasn't the reason for the first set, his pace was just too high for me."

Fifth seed David Ferrer also needed three sets in a 7-6 (8/6) 5-7 6-3 win over fellow Spaniard Albert Ramos.

There were also victories for Kei Nishikori over Guillermo Garcia-Lopez 6-3 6-1 while Canadian Milos Raonic made light work of Jeremy Chardy 6-3 6-3.